US20050009653A1 - Rotary cutter assembly - Google Patents
Rotary cutter assembly Download PDFInfo
- Publication number
- US20050009653A1 US20050009653A1 US10/898,810 US89881004A US2005009653A1 US 20050009653 A1 US20050009653 A1 US 20050009653A1 US 89881004 A US89881004 A US 89881004A US 2005009653 A1 US2005009653 A1 US 2005009653A1
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- US
- United States
- Prior art keywords
- guard
- assembly
- axis
- closed
- pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
- B26D1/29—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting with cutting member mounted in the plane of a rotating disc, e.g. for slicing beans
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C11/00—Other machines for forming the dough into its final shape before cooking or baking
- A21C11/10—Other machines for forming the dough into its final shape before cooking or baking combined with cutting apparatus
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C11/00—Other machines for forming the dough into its final shape before cooking or baking
- A21C11/16—Extruding machines
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
- A23G1/04—Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products
- A23G1/20—Apparatus for moulding, cutting, or dispensing chocolate
- A23G1/201—Apparatus not covered by groups A23G1/21 - A23G1/28
- A23G1/202—Apparatus in which the material is shaped at least partially by a die; Extrusion of cross-sections or plates, optionally with the associated cutting device
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G7/00—Other apparatus or process specially adapted for the chocolate or confectionery industry
- A23G7/0018—Apparatus for cutting or dividing chocolate or candies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/22—Safety devices specially adapted for cutting machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/23—Hay wafering or pelletizing means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8789—With simple revolving motion only
- Y10T83/8791—Tool mounted on radial face of rotor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8789—With simple revolving motion only
- Y10T83/8794—Revolving tool moves through recess in work holder or cooperating tool
Definitions
- Knives 90 are removably mounted to cutter head 82 .
- knives 90 are planar of a generally rectangular shape.
- the front edges of knives 90 are ground to a cutting profile for engaging and sliding on the downstream face of die 42 .
- Knives 90 are formed of tempered and polished spring steel in the preferred form and have an inherent resiliency.
- Each knife 90 includes an aperture 91 closely adjacent but spaced from the rear edge, intermediate the side edges, and spaced from the front edge.
- blade holders 92 allow the installation and removal of knives 90 without requiring any screws, fasteners or the like to be loosened or removed. Specifically, knives 90 are simply slid and snapped into place without the use of screws, fasteners or clamps, with the resiliency of knives 90 themselves being utilized to help hold them in place. Thus, installation and removal can be easily and quickly accomplished without any specialized tools and without considerable skill or expertise.
- cutter head 82 is formed as a single component with no moving or flexible parts, rotary cutter 74 can be quickly assembled and manufactured from a few parts, and cutter head 82 is not subject to breakage or other deterioration due to age or use.
- Guard quarter 266 further includes an enclosure 272 having a generally planar top 274 , a closed first end 276 generally on the opposite side of pulley 264 than motor mount 262 , a second open end 278 intermediate pulley 264 and motor mount 262 , a closed first side 280 and an open second side 282 .
- the lower edges of end 276 and side 280 are secured to bracket 270 such as by bolts, with end 276 and side 280 having a generally arcuate shape.
- Open end 278 and the end edges of bracket 270 , top 274 , and side 280 generally correspond to and are generally coplanar with motor mount 262 .
- guard quarter 266 receives a portion of pulley 264 and is spaced from pulley 250 .
- assembly 260 in the preferred form is for a drive including a first element in the form of motor 76 and a second element in the form of rotary cutter 74
- assembly 260 could be utilized in connection with other types of drives having first and second elements of differing types.
- rotary cutter 74 and assembly 260 each includes a combination of unique features believed to obtain synergistic results. Such features may have application according to the teachings of the present invention in other types and constructions of rotary cutters 74 or assemblies 260 . Other constructions may be contemplated according to the teachings of the present invention.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Food-Manufacturing Devices (AREA)
- Details Of Cutting Devices (AREA)
Abstract
A rotary cutter assembly (11) includes a rotary cutter (74) rotated by a motor (76) through a drive including pulleys (250, 264) and a belt (326) inside of a combination guard and belt tensioner assembly (260). The rotary cutter (74) includes a cutter head (82) having integral blade holders (92) which slideably receive knives (90) in a channel (230) each having a detent (236) which is received in an aperture (91) in the knife (90) so that no fasteners or moveable parts are provided for holding the knives (90) and adjustment of the knives (90) is not needed or allowed. Guard quarters (266, 314) and a guard half (268) are moveable between closed and open positions and are held in the closed position by a single latch (325). The guard half (268) includes an idler (300) which tensions the belt (326) in the closed position. The second guard quarter (314) is mounted upon a pivotable cover (306) which together with the mount (262) for the motor (76) defines an enclosure for the rotary cutter (74) and the food products cut thereby and abuts with the guard half (268) in their closed positions.
Description
- The present invention generally relates to assemblies useable in the field of rotary cutting, particularly to easily removable guards performing multiple functions and to rotary cutters, which are believed to produce synergistic results when utilized together.
- The production of many food products involves the extrusion of cooked food material under pressure through a die port as an extrudate and then to cut that extrudate into lengths as it exits the die ports in the die. A common technique for cutting the extrudate is the use of a rotary cutter which rotates multiple blades past die ports located in a circular pattern in the die. It can be appreciated that the blades are subject to wear and need replacement. In this regard, rotary cutters are often serviced or at least inspected whenever it is necessary to service the die.
- It can be appreciated that safety guards are needed to enclose the rotary cutter and drive therefor to prevent engagement by personnel or clothing as well as to retain the cut food products in an uncontaminated environment and to prevent engagement of the cut food products with the drive. However, it should be appreciated that such guards must allow access when it is desired to service the rotary cutter and/or die. Prior to the present invention, such guards often required removal of several fasteners and often components themselves. Also, components for such prior guards accomplished only single functions, adding complexity to the assembly.
- Servicing the rotary cutter itself also created problems. Particularly, blades of the rotary cutter were held on the blade holders by a clamp plate typically with two or more fasteners. Additionally, the blades and/or blade holders were adjustable so that the cutting angle relative to the die face could be adjusted for optimum operation. However, removing or loosening fasteners was time consuming and added to the overall complexity of the rotary cutter itself. Furthermore, adjusting the blades is a time consuming process even for a skilled operator. Additionally, if not adjusted properly, the blades can cut poorly resulting in defective food products and/or can result in increased wear, breakage, or other damage to the face of the die and/or to the blades themselves. As an example, an incorrect angle of the blade could be compensated by increasing the engagement pressure of the blade with the die, with frictional forces and wear being directly dependent upon the engagement pressure. In addition to increased operating costs as the result of shortened operating life of the components themselves, concerns arise of metal filings and/or pieces being introduced with the food product.
- Thus, a need exists for improved rotary cutters which overcome the deficiencies of prior rotary cutters including but not limited to the need for adjustment and fasteners. Additionally, a need exists for improved assemblies which overcome the deficiencies of prior guards including but not limited to complexity, lack of easy access and single function components.
- The present invention solves these needs and other problems in the field of assemblies useable in the field of rotary cutting by providing, in the preferred form, a rotary cutter having a knife support surface of a blade holder integrally formed with the cutter head such that the angle of the knife support surface and the knife removably attached thereto in a single, nonvariable and nonadjustable potential position can not be varied relative to the rotation axis of the cutter head.
- In further aspects of the present invention, the knife which is restrained to slide along a single slide direction on and parallel to a knife support surface is prevented from sliding in the single slide direction by a detent received in an aperture included in the knife most preferably spaced from the edges of the knife.
- In still other aspects of the present invention, first and second guard quarters and a guard half are provided with the second guard quarter being moveable between a guard position and an access position and with the guard half being moveable between a closed position and an open position. The second guard quarter is prevented from moving from the guard position when the second guard half is in the closed position. Access is prevented to drive elements such as for a motor and a rotary cutter in the guard and closed positions.
- In other aspects of the present invention, a guard receiving the rotatably interconnecting assemblage of a drive prevents a cover from pivoting from an enclosure position while in a guard position and is pivotable to an open position allowing the cover to pivot from the enclosure position to an access position. In the enclosure position, an enclosure is defined for a second element rotatable about an axis. In the access position, access is allowed to the second element.
- It is thus an object of the present invention to provide a novel rotary cutter where the blades are held in correct positions and which remove the ability to manually adjust the blades.
- It is further an object of the present invention to provide a novel rotary cutter where the blades can be easily and quickly replaced by relatively unskilled personnel.
- It is further an object of the present invention to provide such a novel rotary cutter where the blades are held without the use of fasteners, clamp plates or similar moveable and/or removable components.
- It is further an object of the present invention to provide such a novel rotary cutter of a simple construction reducing fabrication and assembly costs.
- It is thus an object of the present invention to provide a novel assembly for enclosing a drive.
- It is further an object of the present invention to provide such a novel drive enclosing assembly including components performing multiple functions.
- It is further an object of the present invention to provide such a novel drive enclosing assembly which can be easily and quickly opened to provide access when desired.
- It is further an object of the present invention to provide such a novel drive enclosing assembly having interlocking components requiring moving of components before other components can be moved.
- These and other objects and advantages of the present invention will become clearer in light of the following detailed description of an illustrative embodiment of this invention described in connection with the drawings.
- The illustrative embodiment may best be described by reference to the accompanying drawings where:
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FIG. 1 shows a perspective view of a rotary cutter assembly fabricated in accordance with the preferred teachings of the present invention and in an operating condition. -
FIG. 2 shows an exploded perspective view of the rotary cutter assembly ofFIG. 1 in a servicing condition. -
FIG. 3 shows a top plan view of a cutter head of the rotary cutter assembly ofFIG. 1 , with portions being shown in phantom. -
FIG. 4 shows a cross sectional view of the rotary cutter assembly ofFIG. 1 according to section line 4-4 ofFIG. 3 . -
FIG. 5 shows a cross sectional view of the rotary cutter assembly ofFIG. 1 similar toFIG. 4 but showing the knife in the process of being removed. -
FIG. 6 shows a cross sectional view of the rotary cutter assembly ofFIG. 1 according to section line 6-6 ofFIG. 3 . -
FIG. 7 shows a cross sectional view of the rotary cutter assembly ofFIG. 1 according to section line 7-7 ofFIG. 2 . - All figures are drawn for ease of explanation of the basic teachings of the present invention only; the extensions of the Figures with respect to number, position, relationship, and dimensions of the parts to form the preferred embodiment will be explained or will be within the skill of the art after the following teachings of the present invention have been read and understood. Further, the exact dimensions and dimensional proportions to conform to specific force, weight, strength, and similar requirements will likewise be within the skill of the art after the following teachings of the present invention have been read and understood.
- Where used in the various figures of the drawings, the same numerals designate the same or similar parts. Furthermore, when the terms “axial”, “radial”, “second”, “side”, “end”, “inner”, “outer”, “inside”, “outside”, and similar terms are used herein, it should be understood that these terms have reference only to the structure shown in the drawings as it would appear to a person viewing the drawings and are utilized only to facilitate describing the preferred embodiment.
- A rotary cutter assembly according to the preferred teachings of the present invention is shown in the drawings and generally designated 11.
Assembly 11 generally includes arotary cutter 74 which is rotatably mounted relative to a die 42 for a cooker/extruder. It can be appreciated that the cooker/extruder can be of any desired configuration including but not limited to of the type shown in U.S. Pat. Nos. 5,577,437; 5,776,534 or 5,919,509, each of which are incorporated herein by reference. Die 42 can be suitably secured to the cooker/extruder and may include provisions for allowing easy change of the die and/or rotary cutter such as but not limited to by including mechanisms of the type shown in U.S. Pat. Nos. 5,433,490; 5,577,437; 6,152,021; 6,167,798 and/or 6,189,439, each of which are incorporated herein by reference. - In the most preferred form, each
rotary cutter 74 includes acenter shaft 80 extending axially from die 42 and defining the rotation axis ofrotary cutter 74. As an example,shaft 80 could be threadably received in die 42, could extend through die 42 and be axially fixed thereto such as by a snap ring or by being threadably received in a nut, or the like. In the most preferred form, a bearing spacer or hub 84 is suitably fixed oncenter shaft 80 such as by a bolt 85 or the like threadably received in the free end ofcenter shaft 80 and sandwiching hub 84 against an enlarged portion ofcenter shaft 80. Acylindrical mount 86 is rotatably mounted to hub 84 bysuitable provisions 88 such as first and second roller bearings as shown and located and axially fixed between hub 84 andcylindrical mount 86. Acutter head 82 is suitably secured in a nonrotatable manner to the upstream face ofmount 86 such as by sockethead cap screws 87 anddowel pins 89. Thus,cutter head 82 is rotated about the axis defined bycenter shaft 80 relative to die 42. A plurality of radially extending knives 90 abut and slide on the downstream face of die 42 and cut the food exiting die 42 into axial lengths. - Knives 90 are removably mounted to
cutter head 82. In the preferred form, knives 90 are planar of a generally rectangular shape. The front edges of knives 90 are ground to a cutting profile for engaging and sliding on the downstream face of die 42. Knives 90 are formed of tempered and polished spring steel in the preferred form and have an inherent resiliency. Each knife 90 includes anaperture 91 closely adjacent but spaced from the rear edge, intermediate the side edges, and spaced from the front edge. - In a preferred form,
cutter head 82 is formed by an annular plate 200 having anupstream face 202, adownstream face 204, acenter opening 206, and a generallycircular periphery 208.Center shaft 80 passes throughopening 206 in a noninterfering manner.Downstream face 204 includes acounter bore 210 for receiving a pilot shoulder formed oncylindrical mount 86. Counter bores 212 extend betweenfaces screws 87 with the heads ofscrews 87 being recessed belowface 202.Bores 214 extend betweenfaces Blade holders 92 are integrally formed with plate 200 and extend radially fromcutter head 82 and beyondperiphery 208, with eachblade holder 92 removably holding a single knife 90 at a single, nonvariable and nonadjustable potential position. - In the most preferred form,
blade holders 92 have generally trapezoidal cross sections perpendicular to the radial direction. Specifically,blade holders 92 include a major base 220 extending at an acute angle in the order of 30° tofaces Blade holders 92 include afirst side 222 extending at the acute angle of the major base 220 and in the most preferred form is coplanar withupstream face 202. Aminor base 224 extends at an obtuse angle in the order of 150° toside 222 and generally parallel to major base 220. Asecond side 226 extends at an obtuse angle in the order of 130° relative tominor base 224 and at an acute angle in the order of 50° to major base 220. In the most preferred form, the interconnections between major base 220 andsides - A
channel 230 extends from major base 220 betweensides blade holders 92 and of a width generally equal to the width of an individual knife 90 and for slideable receipt of knife 90. In particular, thebottom 234 ofchannel 230 defines a knife support surface while the opposite edges ofchannel 230 restrain the individual knife 90 to slide along a single slide direction parallel to and on the knife support surface defined bybottom 234 ofchannel 230. The single slide direction and the knife support surface extend in a plane intersecting with the axis ofrotary cutter 74 at an angle other than perpendicular and particularly at the acute angle of major base 220.Shoulders 232 extend from the opposite edges ofchannel 230 spaced frombottom 234 ofchannel 230 at a distance generally equal to the thickness of an individual knife 90 and for slideable receipt of knife 90 parallel to the knife support surface defined bybottom 234. In the most preferred form, shoulders 232 have an outer surface coextensive with major base 220. - One or
more detents 236 are provided inchannel 230 for holding knife 90 inchannel 230. In the most preferred form,detent 236 is integrally formed as a single component with the knife support surface defined bybottom 234 andblade holder 92. Specifically,detent 236 includes anincline surface 240 extending at a very small acute angle in the order of 8° frombottom 234 away fromside 222.Surface 240 terminates in astop surface 242 extending generally perpendicular tobottom 234, withstop surface 242 having a height abovebottom 234 generally equal to the thickness of knife 90. Thesides 244 ofdetent 236 can have any desired configuration such as planar extending generally perpendicular tobottom 234. In the preferred form, agroove 246 extends from bottom 234 fromside 226 to stopsurface 242 and in the most preferred form of a width generally equal to and preferably slightly wider thanstop surface 242. Ablade backstop 248 shown as first and second projections on radially opposite sides ofdetent 236 extends fromside 226 and abovebottom 234, withbackstop 248 having an outer surface coextensive with major base 220 in the most preferred form. -
Apertures 91 are of a size and position in knives 90 for slideable receipt ofdetents 236. In particular, to install knife 90, knife 90 is positioned to slide onbottom 234 inchannel 230 belowshoulders 232. Knife 90 can been be slid in the single slide direction intochannel 230 with the lower surface abutting withbottom 234 defining the knife support surface until the rear edge of knife 90 engagesincline surface 240. The rear edge will ride up onincline surface 240 untilaperture 91 aligns withdetent 236 at which time knife 90 will return to a planar condition due to the resiliency of knife 90. Thus, knife 90 is held from moving in a radial direction by abutment with the opposite edges ofchannel 230, is held from moving in a direction perpendicular tobottom 234 by abutment withshoulders 232 and bottom 234, is held from moving in a first direction parallel tobottom 234 and perpendicular to the radial direction further intochannel 230 by abutment of the rear edge of knife 90 withbackstop 248 and is held from moving in the opposite direction by abutment of thestop surface 242 withaperture 91. Thus, knife 90 is removably attached toblade holder 92, abuts with the knife support surface defined bybottom 234, and is held at the angle of the knife support surface. - Knife 90 can be removed from
blade holders 92 by inserting a tip of a screwdriver or similar tool intogroove 246 and beneath knife 90. The tool can be pushed or pried to flex knife 90 until the lower surface of knife 90adjacent detent 236 is spaced greater thanstop surface 240 frombottom 234 such that knife 90 can be slid fromchannel 230. It can be appreciated that the resiliency of knife 90 allows knife 90 to flex sufficiently to allow removal ofdetent 236 fromaperture 91. - It should be appreciated that
blade holders 92 allow the installation and removal of knives 90 without requiring any screws, fasteners or the like to be loosened or removed. Specifically, knives 90 are simply slid and snapped into place without the use of screws, fasteners or clamps, with the resiliency of knives 90 themselves being utilized to help hold them in place. Thus, installation and removal can be easily and quickly accomplished without any specialized tools and without considerable skill or expertise. Ascutter head 82 is formed as a single component with no moving or flexible parts,rotary cutter 74 can be quickly assembled and manufactured from a few parts, andcutter head 82 is not subject to breakage or other deterioration due to age or use. - Additionally, it can be appreciated that
blade holders 92 andcutter head 82 integrally formed as a single component provide advantages in holding knives 90 at the correct orientation to increase cutting efficiency while reducing wear and in doing so to minimize the servicing time and difficulty. Specifically,blade holders 92 can be machined precisely enough so that knives 90 engage die 42 at the correct angle to provide high quality cuts and to reduce the tendency to damage the face of die 42 or the tendency of excessive wear to knives 90. Specifically,blade holders 92 can not be varied and do not require adjustment relative to die 42 due to their integral formation and in this regard in fact prevent adjustment especially by relatively unskilled operators. Particularly,channels 230 can be accurately machined relative to the axis ofcutter head 82, and dowel pins 89 accurately positioncutter head 82 relative tocylindrical mount 86 and thus to centershaft 80 and die 42. Additionally,blade holders 92 only allow attachment of knives 90 at the single, nonvariable and nonadjustable, potential position. In particular, it is not possible for knives 90 to be attached toblade holders 92 at any other position moved in any direction parallel or perpendicular to knives 90 except in the single, potential position. Prior clamping type blade holders allowed the knives to be canted or otherwise adjusted relative to the blade holders. According to the preferred teachings of the present invention, it is not possible for anyone including skilled operators and especially unskilled operators to position knives 90 at any other position than the specifically machined and designed single, potential position. - Suitable provisions are provided to rotate
rotary cutter 74 about its axis. In the preferred form,rotary cutter 74 is belt-driven by amotor 76. In particular, atoothed pulley 250 is suitably secured tocylindrical mount 86 by any conventional approach. In the most preferred form, acircular plate 252 is axially positioned betweenpulley 250 andcylindrical mount 86 and extends generally radially from the axis defined bycenter shaft 80 to an extent considerably larger thanpulley 250 andcylindrical mount 86. - According to the preferred teachings of the present invention,
rotary cutter assembly 11 includes a combination guard andbelt tensioner assembly 260. In particular, a generallyplanar motor mount 262 is suitably secured to the cooker/extruder and positioned spaced from and generally tangentially to die 42,rotary cutter 74 and the axis defined bycenter shaft 80, withmotor mount 262 being arranged vertically in the preferred form.Motor mount 262 extends axially greater thancircular plate 252 and less thanpulley 250. Additionally,motor mount 262 has an extent tangential to die 42 generally equal to and particularly slightly larger than die 42.Motor mount 262 can be shaped to accommodate other components associated with the cooker/extruder or with the production of food products such as an angled flange.Motor 76 is suitably mounted tomotor mount 262 such as by dowel pins and/or bolts.Motor 76 includes apulley 264 mounted to its shaft rotatable about an axis generally parallel to and spaced from the axis ofrotary cutter 74 defined bycenter shaft 80. -
Assembly 260 includes afirst guard quarter 266 and aguard half 268 withguard quarter 266 being stationary with respect tomotor 76 andguard half 268 being moveable relative tomotor 76 and in the most preferred form pivotal relative tomotor 76 andguard quarter 266 about an axis parallel to and spaced from the axes ofmotor 76 androtary cutter 74.Guard quarter 266 includes anarcuate bracket 270 suitably secured tomotor 76 in the preferred form, but it could be secured in a stationary manner relative tomotor 76 in other manners including but not limited to being secured tomotor mount 262, the cooker/extruder, or the like.Bracket 270 is positioned axiallyintermediate motor 76 andpulley 264 and generally at the axial extent but slightly greater thanmotor mount 262.Bracket 270 arches around and generally straddles the motor shaft andpulley 264. -
Guard quarter 266 further includes anenclosure 272 having a generally planar top 274, a closedfirst end 276 generally on the opposite side ofpulley 264 thanmotor mount 262, a second open end 278intermediate pulley 264 andmotor mount 262, a closedfirst side 280 and an opensecond side 282. The lower edges ofend 276 andside 280 are secured tobracket 270 such as by bolts, withend 276 andside 280 having a generally arcuate shape. Open end 278 and the end edges ofbracket 270, top 274, andside 280 generally correspond to and are generally coplanar withmotor mount 262. Thus,guard quarter 266 receives a portion ofpulley 264 and is spaced frompulley 250. -
Guard half 268 is generally parallelepiped in shape having aclosed top 284, aclosed bottom 286, a closedfirst end 288, a closedsecond end 290, aclosed side 292 and an open side 294. Side 294 is positionedintermediate pulley 264 andclosed side 292.Guard half 268 is pivotably mounted to and moveable relative to guardquarter 266 such as by a pivotal joint 296 about an axis parallel to and spaced from the axes ofrotary cutter 74 andmotor 76 between an open position and a closed position. The edges oftops bracket 270 and bottom 286 abut, and ends 276 and 288 are coextensive in the closed position in the preferred form shown.Bottom 286 includes afirst cutout 297 which corresponds to the arcuate shape ofbracket 270 for receivingpulley 264 and/or the motor shaft ofmotor 76 whenquarter 266 andhalf 268 are in a closed position.Guard half 268 has a length greater thanquarter 266 and extends beyondpulley 250 in the closed position.Bottom 286 further includes asecond cutout 298 for receiving generally one-half ofpulley 250 in the closed position. An idler 300 is rotatably mounted betweentop 284 and bottom 286 and extends outward ofhalf 268 beyond open side 294. In the most preferred form, idler 300 is adjustably mounted such as by the use of lost motion slots so that the extent of idler 300 outward ofhalf 268 can be adjusted.Guard half 268 receives a portion (remaining from guard quarter 266) ofpulley 264 and a portion ofpulley 250 in the closed position and allows access topulleys -
Assembly 260 further includes a housing 302. In particular and in the preferred form shown, ahinge mount 304 is suitably secured to the cooker/extruder and positioned generally parallel tomotor mount 262 and on the opposite side ofrotary cutter 74. Acover 306 of a generally L shape includes afirst wall 308 having a lower edge pivotally mounted to the upper edge ofhinge mount 304 and asecond wall 310 extending generally perpendicular tofirst wall 308. Cover 306 is pivotal relative to hingemount 304 about an axis which is perpendicular to the axes ofmotor 76,rotary cutter 74 andguard half 268 between a closed, enclosure, or guard position and an open or access position. In the closed position,first wall 308 is coplanar withhinge mount 304 and parallel to and spaced frommotor mount 262 and thesecond wall 310 is generally parallel to and spaced from die 42 and having its free edge resting upon the upper edge ofmotor mount 262. In the open position,first wall 308 is generally perpendicular to hingemount 304 and extends away frommotor mount 262 and withwall 310 extending generally parallel tomotor mount 262 and hingemount 304. Thus, in the access position,wall 310 is spaced frommount 262 to allow access torotary cutter 74. -
Wall 310 includes anopening 312 through whichpulley 250 extends whencover 306 is in its closed position. In the most preferred form, opening 312 is oval shape having a major axis perpendicular to the hinge axis betweencover 306 and hingemount 304 to minimize the size ofopening 312 while still allowing pivotal movement ofcover 306 relative torotary cutter 74.Plate 252 has a size larger than opening 312, withwall 310 ofcover 306 locatedintermediate plate 252 andpulley 250 in the closed position ofcover 306. - Housing 302 further includes a receptacle or
second guard quarter 314 secured to and moveable withcover 306 relative torotary cutter 74 and to guardhalf 268.Guard quarter 314 includes aclosed top 316, a firstclosed end 318 on the opposite side ofpulley 250 thanmotor mount 262 in the closed position, a secondopen end 320, a closed side 322, and anopen side 324, with the bottom ofquarter 314 being formed and defined bywall 310. In the closed position,guard quarter 314 receives a portion ofpulley 250 and is spaced frompulley 264 while in the open position is spaced frompulley 250. In the closed position ofguard half 268 and cover 306,open side 324 is coextensive with open side 294, top 316 is coextensive withtops closed end 318 is generally coextensive withend 290. A suitable securing mechanism such as alatch 325 betweenends secure guard half 268 to guardquarter 314. A continuous, flaccid member such as abelt 326 shown as a timing belt extends around and betweenpulleys cover 306 andguard half 268 are in the closed position. - In the closed positions,
guard quarters guard half 268 receive and enclosepulleys timing belt 326 and generally prevent access by personnel, clothing and the like to pulleys 250 and 264 andtiming belt 326. Specifically,pulley 264 and the C-shaped portion ofbelt 326 on the same side ofmotor mount 262 aspulley 264 are received byfirst guard quarter 266 andguard half 268. Additionally,pulley 250 and the C-shaped portion ofbelt 326 on the same side ofmotor mount 262 aspulley 250 are received bysecond guard quarter 314 andguard half 268. Additionally,motor mount 262,walls mount 304 define an enclosure forrotary cutter 74 to thereby retain the food products cut by knives 90 in an uncontaminated environment and to prevent engagement of the cut food products with thedrive comprising pulley 250 andbelt 326. In this regard,circular plate 252 acts as a slinger to prevent exiting of the cut food products throughopening 312. Thus, assembly 260 functions as both the guard for thedrive including pulleys belt 326 but also defines the enclosure for the food products aroundrotary cutter 74. Additionally, the engagement ofidler 300tensions belt 326 around pulleys 250 and 264. It should be appreciated that tension onbelt 326 by idler 300 can be adjusted by utilizing anadjustable latch 325, by moving idler 300 relative to guardhalf 268, or by other means. Additionally, it should be appreciated thatguard half 268 in its closed position extends over, abuts with and prevents pivoting ofcover 306 andguard quarter 314 about its axis from its closed position to its open position unless securement bylatch 326 is released andguard half 268 is moved from its closed position to a noninterfering position relative to cover 306. - If access is desired, latch 325 can be released to allow
guard half 268 to be pivoted from its closed position to its access position. In the preferred form,latch 325 is of the type which can be opened without the use of tools such as but not limited to an overcenter type. Onceguard half 268 is moved from its closed position, idler 300 is removed frombelt 326 so that it is no longer under tension. Thus, it can be appreciated thatassembly 260 performs multiple functions as it performs as a guard and also as a belt tensioner. Withguard half 268 in its open position and the tension onbelt 326 removed,belt 326 can be removed frompulleys belt 326 is removed, cover 306 can be pivoted from its closed position to its open position. It should be appreciated thatcover 306 can be moved without the use of tools. Additionally, in the open position,wall 310 is parallel tomotor mount 262 at a spacing greater than the diametric extent of die 42 and specifically by the height ofwall 308 to maximize the space for servicingrotary cutter 74 and/or die 42. It should be appreciated that all components ofassembly 260 remain secured relative to the cooker/extruder and are not removed so that the risk of misplacement is eliminated. Additionally, it is only necessary to release thesingle latch 325 with all of the other components being secured by the interfitting relation ofguard half 268 therewith. - After die 42 and/or
rotary cutter 74 has been serviced or replaced,assembly 260 can be moved to its closed position by simply reversing the procedure for moving to its open position. - Now that the basic teachings of the present invention have been explained, many extensions and variations will be obvious to one having ordinary skill in the art. For example, although
apparatus 11 of the most preferred form includes the combination of several unique features believed to obtain synergistic results, apparatus could be constructed according to the teachings of the present invention including such features singly or in other combinations. Specifically,rotary cutters 74 could be driven in other manners including but not limited to the types shown in U.S. Pat. No. 6,189,439 including provisions for slidingmotor 76 andremovably coupling motor 76 torotary cutter 74 or by utilizing stationary shaft motors. Similarly, althoughassembly 260 in the preferred form is for a drive including a first element in the form ofmotor 76 and a second element in the form ofrotary cutter 74,assembly 260 could be utilized in connection with other types of drives having first and second elements of differing types. Likewise,rotary cutter 74 andassembly 260 each includes a combination of unique features believed to obtain synergistic results. Such features may have application according to the teachings of the present invention in other types and constructions ofrotary cutters 74 orassemblies 260. Other constructions may be contemplated according to the teachings of the present invention. - Likewise, although
guard quarter 266 is shown as being unmovable relative to the first element shown asmotor 76 in the preferred form,guard quarter 266 could also be moveable relative thereto as long as it is fixed whensecond guard quarter 314 andguard half 268 are in their closed positions. - Further, although shown as being solid in the preferred form,
guard quarters 266 and/or 314 and/orguard half 268 could be completely or partially formed of screen or similar constructions which can allow observation and passage of air but which is closed to passage of personnel, clothing and like objects. - Furthermore, although in the
preferred form motor 76 androtary cutter 74 are rotatably interconnected bypulleys belt 326, assemblages of other types and variations can be utilized for rotatably interconnectingrotary cutter 74 andmotor 76 according to the teachings of the present invention. Additionally, the guard for such rotatably interconnected assemblages can be varied from the type shown in the preferred form according to the teachings of the present invention including but not limited to guards which keep the assemblage in a sealed environment where vacuum conveyers are utilized for the cut food products. - Thus since the invention disclosed herein may be embodied in other specific forms without departing from the spirit or general characteristics thereof, some of which forms have been indicated, the embodiments described herein are to be considered in all respects illustrative and not restrictive. The scope of the invention is to be indicated by the appended claims, rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are intended to be embraced therein.
Claims (19)
1. Assembly for a drive including a first element rotatable about a first axis and including a first pulley, a second element rotatable about a second axis and including a second pulley, and a continuous, flaccid member extending between the first and second pulleys, with the first and second axes being in a spaced parallel relation, with the assembly comprising, in combination: a first guard quarter; a second guard quarter, and a guard half, with the first guard quarter being fixed relative to the first element and receiving a portion of the first pulley and being spaced from the second pulley, with the second guard quarter being movable relative to the second element between a guard position receiving a portion of the second pulley and spaced from the first pulley and an access position being spaced from the second pulley, with the guard half being movable relative to the first and second guard quarters between a closed position receiving a remaining portion of the first pulley and also receiving a remaining portion of the second pulley and an open position allowing access to the first and second pulleys, with the guard half being secured relative to the second guard quarter to prevent the second guard quarter from being moved from the guard position to the access position when the guard half is secured relative to the second guard quarter.
2. The assembly of claim 1 further comprising, in combination: an idler secured to the guard half and adapted to engage the continuous, flaccid member when the guard half is located in the closed position.
3. The assembly of claim 2 with the second guard quarter being pivotal about a third axis between the guard position and the access position, with the guard half abutting with the second guard quarter in the guard position.
4. The assembly of claim 3 with the guard half being pivotal about a fourth axis between the closed position and the open position, with the fourth axis being perpendicular to the third axis.
5. The assembly of claim 4 with the fourth axis being parallel to and spaced from the first and second axes.
6. The assembly of claim 5 further comprising, in combination: a cover pivotable about the third axes, with the second guard quarter being secured to the cover, with the cover including an opening through which the second pulley extends in the guard position, with the guard half in the closed position abutting with the cover in the guard position to prevent pivoting of the cover about the third axis.
7. The assembly of claim 6 further comprising, in combination: a plate adapted to be rotatable with the second element and of a size larger than the opening, with the cover located intermediate the plate and the second pulley in the guard position.
8. The assembly of claim 7 further comprising, in combination: a planar mount extending generally tangential to the second element and spaced from the second axis, with the cover including a wall extending generally parallel to and spaced from the planar mount and opposite of the second axis than the planar mount, with the planar mount, the plate, the cover and the wall defining an enclosure for the second element.
9. The assembly of claim 8 with the planar mount adapted to mount a motor comprising the first element, with the motor located on the opposite side of the planar mount than the second element.
10. The assembly of claim 6 with the first guard quarter including an open end, an open side, a closed end, a closed side and a closed top, with the second guard quarter including an open end, an open side, a closed end, a closed side and a closed top, with the guard half including an open side, closed first and second ends, and a closed top, with the closed tops of the first and second guard quarters and the guard half preventing access to the first and second elements generally parallel to the first and second axes and the closed ends and the closed sides of the first and second guard quarters and the guard half preventing access to the first and second elements generally perpendicular to the first and second axes when the second guard quarter is in the guard position and the guard half is in the closed position.
11-25. (canceled).
26. Assembly for a drive including a first element rotatable about a first axis, a second element rotatable about a second axis spaced from and parallel to the first axis, and an assemblage rotatably interconnecting the first and second elements, comprising, in combination: a planar mount extending generally tangential to the second element and spaced from the second axis; a cover including a first wall spaced from the planar mount and opposite of the second axis than the planar mount, with the cover further including a second wall extending from the first wall, with the cover being pivotal between an enclosure position and an access position, with the first and second walls and the planar mount defining an enclosure for the second element in the closed position and the second wall being spaced from the planar mount in the access position to allow access to the second element; and a guard receiving the assemblage and pivotal about a fourth axis between a guard position and an open position, with the guard in the guard position preventing the cover from pivoting from the enclosure position and allowing the cover to pivot from the enclosure position to the access position in the open position.
27. The assembly of claim 26 with the second wall including an opening through which a portion of the assemblage can extend in the guard position, with the second element including a plate rotatable about the second axis with the second element and of a size larger than the opening.
28. The assembly of claim 27 with the cover further including a receptacle formed on the second wall for receiving the assemblage, with the guard being pivotal relative to the receptacle, with the receptacle and the guard enclosing the assemblage in the enclosure position and the guard position and allowing access to the assemblage in the open position.
29. The assembly of claim 28 with the assemblage including a first pulley connected to the first element, a second pulley connected to the second element, and a continuous, flaccid member extending between the first and second pulleys, with the second pulley extending through the opening in the enclosure position.
30. The assembly of claim 29 further comprising, in combination: an idler secured to the guard and adapted to engage the continuous, flaccid member when the guard is in the guard position and to be disengaged from the continuous, flaccid member when the guard is in the open position.
31. The assembly of claim 30 with the third axis being perpendicular to the first and second axes and with the fourth axis being parallel to the first and second axes.
32. The assembly of claim 26 with the cover further including a receptacle formed on the second wall for receiving the assemblage, with the guard being pivotal relative to the receptacle, with the receptacle and the guard enclosing the assemblage in the enclosure position and the guard position and allowing access to the assemblage in the open position.
33. The assembly of claim 32 with the third axis being perpendicular to the first and second axes and with the fourth axis being parallel to the first and second axes.
Priority Applications (1)
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US10/898,810 US7094169B2 (en) | 2001-10-17 | 2004-07-26 | Rotary cutter assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/982,125 US6767198B2 (en) | 2001-10-17 | 2001-10-17 | Rotary cutter assembly |
US10/898,810 US7094169B2 (en) | 2001-10-17 | 2004-07-26 | Rotary cutter assembly |
Related Parent Applications (1)
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US09/982,125 Division US6767198B2 (en) | 2001-10-17 | 2001-10-17 | Rotary cutter assembly |
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US20050009653A1 true US20050009653A1 (en) | 2005-01-13 |
US7094169B2 US7094169B2 (en) | 2006-08-22 |
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US10/898,810 Expired - Fee Related US7094169B2 (en) | 2001-10-17 | 2004-07-26 | Rotary cutter assembly |
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US09/982,125 Expired - Lifetime US6767198B2 (en) | 2001-10-17 | 2001-10-17 | Rotary cutter assembly |
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US20060121142A1 (en) * | 2004-02-27 | 2006-06-08 | Jmp Industries, Inc. | Pulse wave modulator cutting assembly |
US20070172533A1 (en) * | 2004-02-27 | 2007-07-26 | Jmp Industries, Inc. | Extruder system and cutting assembly |
US7674102B2 (en) | 2004-02-27 | 2010-03-09 | Jmp Industries, Inc. | Extruder system and cutting assembly |
US20100143520A1 (en) * | 2004-02-27 | 2010-06-10 | Jmp Industries, Inc. | Extruder system and cutting assembly |
US8186991B2 (en) | 2004-02-27 | 2012-05-29 | Jmp Industries, Inc. | Extruder system and cutting assembly |
US8491294B2 (en) | 2004-02-27 | 2013-07-23 | Jmp Industries, Inc. | Extruder system and cutting assembly |
US20090078099A1 (en) * | 2007-09-20 | 2009-03-26 | Moffat Pty Limited | Bread slicer |
US7987757B2 (en) | 2007-09-20 | 2011-08-02 | Moffat Pty Limited | Bread slicer |
US20150005119A1 (en) * | 2013-06-27 | 2015-01-01 | Hyundai Motor Company | Timing belt system for vehicle |
US9145829B2 (en) * | 2013-06-27 | 2015-09-29 | Hyundai Motor Company | Timing belt system for vehicle |
US20170067195A1 (en) * | 2015-09-09 | 2017-03-09 | Frankl & Kirchner GmbH & Co KG Fabrik für Elektromotoren u. elektrische Apparate | Drive Motor Attachment Assembly for a Sewing Machine |
Also Published As
Publication number | Publication date |
---|---|
US7094169B2 (en) | 2006-08-22 |
CA2406483A1 (en) | 2003-04-17 |
US20030072835A1 (en) | 2003-04-17 |
US6767198B2 (en) | 2004-07-27 |
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